Lubricating attachment.



No. 780,953. I PATBNTBD JANfzx, 1905.

'y F. MUGARTHY.

LUBRIGATING ATTAGHMENT.

APPLICATION FILED MAB.. 7, 190414 Patented January 24, 1905. y

PATENTY OFFICE. j

FELIX MCCARTHY, OF POT'ISTOWN, PENNSYLVANIA.

LUBRICATING. ATTACHMENT. l

SPECIFICATION forming part of Letters Patent No. 780,953, dated January24, 1905. Application fue@ naar 7, 1904. seria No. 196,912.

To all whom, t may concern:

Be it known thatI, FELIX MCCARTHY, a citi- Zen of the United States,residing at Pottstown, in the county of Montgomery and State ofPennsylvania, have invented certain new and useful Improvements inLubricating Attachments; and I do hereby declare the following to beavfull, clear, and exact-description of the invention, such as willenable others skilled in the art to which it appcrtains to make andusethe same.

My invention relates'to a lubricating attachment commonly designated agrease-cum7 and it consists of certain specified details of constructionand combination of parts, all of which will be hereinafterclearlypresented, my object being to provide a lubricating attachment of thecharacter specified which, while especially eiicient and valuable foralmost every purpose for which such an appliance is required, will befound more particularly applicable for use in connection withsteamchests and all varieties of bearings having a temperature near themelting-point of tallow and lubricant compounds prepared in connectiontherewith.

The essential feature of my invention consists in providing means forreadily removing the lubricant-receptacle, whereby it may be replenishedfrom time to time as required.

Further objects and advantages will be hereinafter clearly set forth,and illustrated in the accompanying drawings, in which- Figure 1 shows aside elevation of my lubrieating attachment complete ready to be appliedto use upon a steam-chest or bearing.

Fig. 2 is a central sectional View thereof. Fig.

8 is a transverse section taken on line 3 3 of `centrally-disposed boreor duct I and also with a threaded aperture in which I dispose thethreaded stem or valve 5, said threaded stem being so located as tointersect the duct 4 and wholly or partially close the same, as desired.The lubricant-holder or body-section 6 is of proper size and threaded atits lower open end to be received by the flange 2, the said body portionhaving the tubular extension 7 upon its upper end, the bore of theextension 7 being open and communicating with the interior of thereceptacle or body portion 6, in which I place a non-liquid lubricant 8,as tallow or any lubricating compound commonly used. The tubularextension 7 is designed to receive themember 9, which is open at itsinner end and is provided at its outer end with a centrally-disposedaperture designed to receive the stem or piston-rodv 10, said stem beingconnected to or integrally formed with the piston 11, which is of propersize to snugly fit within the casing or body portion 6 and is intendedto bear upon the lubricant 8 and draw the same downward throughthe duct4L and thence into the bearings, steam-chest, or Valve, as the case maybe. I also provide the snugly-fitting disks or washers 12, made of somesuitable material, which will prevent the lubricant from passing betweenf.the edges thereof` and the walls of the casing 6, and in vorder tohold the piston normally downward I provide the controlling-spring 13,the upper end of which bears against the outer end of the. member 9,while the lower end is disposed in engagement with the upper surface ofthe piston 11. The piston-rod is held against moving inward to an undueextent by the nut 14 or other equivalent device.

It will be seen that the lower portion of the member 9 is externallythreaded, said threads being designed to cooperate `with the threadedface of the locking member 15, said member being pivotally held in itsoperative position, as by the rivet 16 engaging with the bracket 17,carried by the outer surface of the tubu-l lar extension 7. The lockingmember 15 is provided with a controlling-handle 18, said handle beingdisposed normally outward by the compression-spring 19, resting betweenupon the member 9.

the end of the handle and a contiguous part of the tubular extension 7,and it is obvious that by moving the handle 18 inward the locking member15 will be withdrawn from engagement with the threaded surface of themember 9, thereby permitting said member to be freely movedlongitudinally within the tubular extension 7. I. consider this featurea very valuable and important part of my 1nvention, inasmuch as thetubular member 9 may be instantly withdrawn a proper distance from thetubular extension 7 by simply moving the locking member 15 outward, itbeing understood that a suitable opening 2O is provided in a contiguouspart of the extension 7 whereby said locking member may reach throughinto engagement with the threads The locking member 15 has a curvedinner face coincident with the outer periphery of the member 9 and isprovided throughout its curved surface with threads which are adapted toengage the threads upon the member 9, whereby the said member 9 maybemmutely adjusted upwardly or downwardly by shghtly turning said member,the locking member 15 and the member 9 having the same relativecooperation with each other as have a threaded bolt and tap therefor. Asbefore stated, however, when it is desired to move the member 9 to anygreat distance the result may be quickly accomplished by releasing thelocking member 15 from engagement with the threads on the member 9.

Vv'hen it is necessary to refill the receptacle 6 with lubricant, allthat is required is to unscrew said receptacle from engagement with theiiange 2, when the lubricating compound may be introduced through theopen end of the casing and the casing restored into reengagement withsaid iiange. Before the receptacle 6 is filled it will be understoodthat a pressure upon the handle 18 will release the member 9, so that itwill be left free to be moved outward bythe tension of the spring' 13,and. after the receptacle has been filled and attached to the basemember in the manner specified a proper tension may be applied to thepiston 11 by iirst pressing upon the handle 18 and moving the member 9inward suiiiciently to compress the spring 13 against said piston, whenby releasing the handle 18 the member 9 will vbe engaged and securelylocked in an adjusted position, this operation being repeated and themember 9 forced farther inward from time to time as the lubricant isused.

It will thus be seen that I have provided a lubricant-receptacle forbearings, valves, 85e.,

which may be very quickly removed and refilled at any time desired, and,moreover, I can provide any degree of force required to secure a perfectfeed or forcing of the lubricant into the bearings. The piston is alsovery quickly operated and restored to its initial position in the outerend of the receptacle by a simple pressure upon the controllinghandle18. My valve may therefore be readily filled even while the engine is inmotion, since the valve 5 will prevent any escape of steam in caseswhere my lubricant-receptaclc is applied to a steam-chest or a valve. Assoon, therefore, as the casing is again screwed home into engagementwith the iiange the grease is pressed down until the nut on thepiston-rod is at a proper point thereon and a suiiicient distance awayfrom the spring barrel or member 9, the said barrel answering the doublepurpose of housing and steadying the spring and means for cooperatingwith the locking member 15. By observing the position of the nut 14relative to the end of the spring barrel or member 9 the engineer may atall times readily know exactly how the lubricant is being fed orexhausted and that when the nut 14: is in engagement with the end of themember 9 he will know that said member should be again moved 1nward,\\lii.:ll, as before explained, can be easily accom] lished byreleasing the locking member l5 from en-v gagement with the wallsthereof.

Believing that the advantages and manner of using my invention have thusbeen clearly presented, further description is deemed nnnecessary.

What I claim as new, and desire to secure by Letters Patent, is-

1. The herein-described lubricant attachmentor grease-cup, comprising abase portion having an anchoring-stem and a fiange, a easing adapted tobe connected with said base and having upon its upper end a tubularextension, a piston litting within the casing and having a stemdirecte-d outward through said tubular extension, a member 9 open at itsinner end and having an aperture in its outer end through which saidstem loosely extends, a locking member 15 pivotally secured to saidtubular extension` said member having a curved inner face coincidentwith the periphery of the member 9 and threaded, to cooperate with thethreads on said member 9, said loel ing member 1o also having a curvedhandle portion and a spring interposed between said handle portion andtubular extension, whereby said member 15 will be held normally inengagementwith the member 9, all combined substantially as set forth.

2. The herein-described lubricant attachment comprising a casing havinga tubular extension at its upper end and a base portion secured to itslower end, an cxteriorly-threaded member 9 adapted to enter said tubularex tension, a locking member 15 pivotally secured to said tubularextension, said locking member having a curved inner face coincident IOCwith the outer wall of the member 9, said Intestimony whereofhvesignedmyname curved face being threaded throughout its tothis speceationin thepresence of two sub- I0 length and adapted `to cooperate with theseribng witnesses.

thread upon the member 9 and means to move y x t 5 said looking memberinto or out of engage- FELIX MGLARTHY' ment with said member 9, wherebysaid mem- Witnesses: ber 9 may be moved upwardly or downwardly ALDES J.BERNHART,

at will, as set forth. v L. B. KEIN.

